Não informado. (2020). Petroleum Age. Petroleum Age Publishing Company.
Style de citation Chicago (17e éd.)Não informado. Petroleum Age. Chicago, Ill: Petroleum Age Publishing Company, 2020.
Style de citation MLA (8e éd.)Não informado. Petroleum Age. Petroleum Age Publishing Company, 2020.
Attention : ces citations peuvent ne pas être correctes à 100%.